Korg Forums

[mstodola]

Well I finally got around to trying the idea of installing a 32GB uSD chip. As some of you know my SD went dead quite awhile ago. Somebody else had problems with bigger uSDs and replaced it with a smaller one (which are getting harder to find). I had the idea also, a number of months ago, and purchase a smaller one but because I didn't really need it, I kept putting it off. So finally today I tried it and "miracles of miracles" it worked. I can see my SD again. So the uSD port did not die, but only had too big a uSD in it.

By the way before the uSD port seeming died I had all kinds of funny lock up problems and such. So it seems a 32GB uSD is the maximum size the Pa4X can use.

Mitch
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Pa4x, Oasys 76, K2000, PC3K7, Montage 8, Pa5x

[pa4x_user]

Interesting - I think my experience may have been similar, though I am hazy on the details as I have had my Pa4X about 8 months now.

I initially installed a 64Gb SD, and it worked fine for a while, but after a month or so it was unrecognized. This is similar to the experience reported by Marrantz. http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=110289&highlight=card

From memory, I had a few freezes during that time also.

Subsequently, I replaced it with a 32Gb Sandisk SD, which works fine, and I don't recall any freezes since then.

Phil
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Korg Pa4X (OS NEXT 3.1.0)
Bose L1M2 speaker system
Yamaha BT midi interface
Songbook+ app for iPad
Cubase12 Pro DAW software
Dorico Elements 4.2 scoring software
Band-in-a-Box 2022
Yamaha CVP-309GP

[duby2]

I have use just a 32 gb and it hold more then I need and work fine for me ( soo far ) and my os is 121

[ozdaniel(AD)]

[mstodola]

I did reformat the SD to FAT32 -- on the Pa4x. I also have linux which allows for reformatting to all the standard formats. I haven't checked the 32GB uSD but I'm not pulling it out to check it. I might check out the uSD's that stopped working in the Pa4x.

My Pa4x after awhile started locking up and doing all kinds of weird stuff. I thought I had blown the uSD port because of the warning in the manual about installing the chip with the power cord attached (which I had done). Like Duby2 said, I'll probably never use up 32GB anyway; and I'm just happy it's not broken. I've gotten used to using the USB and the hard drive the most anyway.

Thank you for the information anyway.
Mitch
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Pa4x, Oasys 76, K2000, PC3K7, Montage 8, Pa5x

[mstodola]

update:
I checked all my uSD chips and they are all FAT32. So that was not the problem. I guess I will see what happens with the new 32GB chip. I can see the new chip but I can not see the bigger chips. I can read the bigger chips from the computer so they work, just cannot be used in my Pa4x.

update:
I just checked the 32 and the other larger chips. It seems the larger chips have two partitions. The first is 16GB and the second is a large logical partition. Whereas the 32GB chips have only one partition and it is a primary partition. Maybe that is the difference.

Mitch
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Pa4x, Oasys 76, K2000, PC3K7, Montage 8, Pa5x

[karmathanever]

Was just going to say - re-partition it....

Pete
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PA4X-76, Karma, WaveDrum GE, Fantom 8 EX
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[mstodola]

Yep....
Actually .. one has to completely wipe the thumb drive, then reformat to FAT32. That was the only way I was able to make one partition on the chip. I haven't tried it, but I think we have finally found the solution to the uSD dilemma.

I think things lock up because the Pa4x gets confused with the two partitions on the bigger SD chips. I don't think the first partition is meant to be written to and if the Pa4x tries to access it, the machine locks up. Not having access to the code I can only guess.
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Pa4x, Oasys 76, K2000, PC3K7, Montage 8, Pa5x